UV Index in Tolanaro, Madagascar

Last updated: September 1, 2025

In Tolanaro, Madagascar, being aware of the UV Index is crucial for maintaining skin health and preventing sunburns. Understanding the UV levels throughout the day helps residents and visitors alike to take necessary precautions against harmful ultraviolet radiation. The tropical climate of Tolanaro brings varying sun exposure risks, especially during peak hours when the UV Index can soar to 7 around noon. By staying informed about the UV Index, you can enjoy the beautiful Malagasy outdoors while safeguarding your skin from potential damage.

Hourly UV Index in Tolanaro

The UV Index reveals an early morning reprieve, starting at a gentle 1 at 7:00 AM and remaining low through 9:00 AM. However, as the sun climbs, intensity increases sharply, peaking at a 7 around noon, signaling the most potent UV exposure of the day. The early afternoon maintains a respectable UV level of 6 at 1:00 PM before gradually tapering off. By mid-afternoon, it drops to 4, then swiftly declines to 1 by 4:00 PM, and finally settles at 0 by 6:00 PM, marking the day's end for UV concern. This hourly trend underscores the importance of sun safety during peak hours, especially between 10 AM and 2 PM.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	6	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Tolanaro

The UV Index trend throughout the year indicates significant seasonal fluctuations in UV exposure, with the highest risks observed from January to March and during October to November, where UV levels reach an extreme category, necessitating a burn time of just 10 minutes. April, May, August, and September also present high UV risks, categorized as very high, with burn times extending to 15 minutes. Visitors and residents are advised to take precautions during these high-risk months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, particularly during midday hours when UV radiation is at its peak. Staying informed about daily UV forecasts can further enhance safety and minimize the risk of overexposure.

Monthly Maximum UV Index for Tolanaro, Madagascar

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Tolanaro. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Tolanaro, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Tolanaro UV Index with Other Madagascar Cities

The table above highlights how UV exposure in Tolanaro compares to other major locations across Madagascar. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Tolanaro's solar exposure compared to other cities in Madagascar. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tolanaro	15	15	14	10	8	6	6	8	10	12	13	14
Toamasina UVI	16	16	15	12	9	7	8	10	12	12	13	15
Fianarantsoa UVI	17	17	15	12	9	7	8	10	12	13	14	16
Mahajanga UVI	16	16	15	13	10	8	9	11	12	12	13	15
Antananarivo UVI	17	17	15	12	10	8	9	11	13	13	14	16
Antsirabe UVI	17	17	16	13	10	8	9	11	13	13	14	16